gdbserver/target.h

   1 /* Target operations for the remote server for GDB.
   2    Copyright (C) 2002-2020 Free Software Foundation, Inc.
   3
   4    Contributed by MontaVista Software.
   5
   6    This file is part of GDB.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GDBSERVER_TARGET_H
  22 #define GDBSERVER_TARGET_H
  23
  24 #include <sys/types.h> /* for mode_t */
  25 #include "target/target.h"
  26 #include "target/resume.h"
  27 #include "target/wait.h"
  28 #include "target/waitstatus.h"
  29 #include "mem-break.h"
  30 #include "gdbsupport/btrace-common.h"
  31 #include <vector>
  32
  33 struct emit_ops;
  34 struct buffer;
  35 struct process_info;
  36
  37 /* This structure describes how to resume a particular thread (or all
  38    threads) based on the client's request.  If thread is -1, then this
  39    entry applies to all threads.  These are passed around as an
  40    array.  */
  41
  42 struct thread_resume
  43 {
  44   ptid_t thread;
  45
  46   /* How to "resume".  */
  47   enum resume_kind kind;
  48
  49   /* If non-zero, send this signal when we resume, or to stop the
  50      thread.  If stopping a thread, and this is 0, the target should
  51      stop the thread however it best decides to (e.g., SIGSTOP on
  52      linux; SuspendThread on win32).  This is a host signal value (not
  53      enum gdb_signal).  */
  54   int sig;
  55
  56   /* Range to single step within.  Valid only iff KIND is resume_step.
  57
  58      Single-step once, and then continuing stepping as long as the
  59      thread stops in this range.  (If the range is empty
  60      [STEP_RANGE_START == STEP_RANGE_END], then this is a single-step
  61      request.)  */
  62   CORE_ADDR step_range_start;   /* Inclusive */
  63   CORE_ADDR step_range_end;     /* Exclusive */
  64 };
  65
  66 class process_target;
  67
  68 /* GDBserver doesn't have a concept of strata like GDB, but we call
  69    its target vector "process_stratum" anyway for the benefit of
  70    shared code.  */
  71 struct process_stratum_target
  72 {
  73   /* Return the breakpoint kind for this target based on PC.  The PCPTR is
  74      adjusted to the real memory location in case a flag (e.g., the Thumb bit on
  75      ARM) was present in the PC.  */
  76   int (*breakpoint_kind_from_pc) (CORE_ADDR *pcptr);
  77
  78   /* Return the software breakpoint from KIND.  KIND can have target
  79      specific meaning like the Z0 kind parameter.
  80      SIZE is set to the software breakpoint's length in memory.  */
  81   const gdb_byte *(*sw_breakpoint_from_kind) (int kind, int *size);
  82
  83   /* Return the thread's name, or NULL if the target is unable to determine it.
  84      The returned value must not be freed by the caller.  */
  85   const char *(*thread_name) (ptid_t thread);
  86
  87   /* Return the breakpoint kind for this target based on the current
  88      processor state (e.g. the current instruction mode on ARM) and the
  89      PC.  The PCPTR is adjusted to the real memory location in case a flag
  90      (e.g., the Thumb bit on ARM) is present in the PC.  */
  91   int (*breakpoint_kind_from_current_state) (CORE_ADDR *pcptr);
  92
  93   /* Returns true if the target can software single step.  */
  94   int (*supports_software_single_step) (void);
  95
  96   /* Return 1 if the target supports catch syscall, 0 (or leave the
  97      callback NULL) otherwise.  */
  98   int (*supports_catch_syscall) (void);
  99
 100   /* Return tdesc index for IPA.  */
 101   int (*get_ipa_tdesc_idx) (void);
 102
 103   /* Thread ID to (numeric) thread handle: Return true on success and
 104      false for failure.  Return pointer to thread handle via HANDLE
 105      and the handle's length via HANDLE_LEN.  */
 106   bool (*thread_handle) (ptid_t ptid, gdb_byte **handle, int *handle_len);
 107
 108   /* The object that will gradually replace this struct.  */
 109   process_target *pt;
 110 };
 111
 112 class process_target
 113 {
 114 public:
 115
 116   virtual ~process_target () = default;
 117
 118   /* Start a new process.
 119
 120      PROGRAM is a path to the program to execute.
 121      PROGRAM_ARGS is a standard NULL-terminated array of arguments,
 122      to be passed to the inferior as ``argv'' (along with PROGRAM).
 123
 124      Returns the new PID on success, -1 on failure.  Registers the new
 125      process with the process list.  */
 126   virtual int create_inferior (const char *program,
 127                                const std::vector<char *> &program_args) = 0;
 128
 129   /* Do additional setup after a new process is created, including
 130      exec-wrapper completion.  */
 131   virtual void post_create_inferior ();
 132
 133   /* Attach to a running process.
 134
 135      PID is the process ID to attach to, specified by the user
 136      or a higher layer.
 137
 138      Returns -1 if attaching is unsupported, 0 on success, and calls
 139      error() otherwise.  */
 140   virtual int attach (unsigned long pid) = 0;
 141
 142   /* Kill process PROC.  Return -1 on failure, and 0 on success.  */
 143   virtual int kill (process_info *proc) = 0;
 144
 145   /* Detach from process PROC.  Return -1 on failure, and 0 on
 146      success.  */
 147   virtual int detach (process_info *proc) = 0;
 148
 149   /* The inferior process has died.  Do what is right.  */
 150   virtual void mourn (process_info *proc) = 0;
 151
 152   /* Wait for process PID to exit.  */
 153   virtual void join (int pid) = 0;
 154
 155   /* Return true iff the thread with process ID PID is alive.  */
 156   virtual bool thread_alive (ptid_t pid) = 0;
 157
 158   /* Resume the inferior process.  */
 159   virtual void resume (thread_resume *resume_info, size_t n) = 0;
 160
 161   /* Wait for the inferior process or thread to change state.  Store
 162      status through argument pointer STATUS.
 163
 164      PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to
 165      wait for any thread of process pid to do something.  Return ptid
 166      of child, or -1 in case of error; store status through argument
 167      pointer STATUS.  OPTIONS is a bit set of options defined as
 168      TARGET_W* above.  If options contains TARGET_WNOHANG and there's
 169      no child stop to report, return is
 170      null_ptid/TARGET_WAITKIND_IGNORE.  */
 171   virtual ptid_t wait (ptid_t ptid, target_waitstatus *status,
 172                        int options) = 0;
 173
 174   /* Fetch registers from the inferior process.
 175
 176      If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO.  */
 177   virtual void fetch_registers (regcache *regcache, int regno) = 0;
 178
 179   /* Store registers to the inferior process.
 180
 181      If REGNO is -1, store all registers; otherwise, store at least REGNO.  */
 182   virtual void store_registers (regcache *regcache, int regno) = 0;
 183
 184   /* Prepare to read or write memory from the inferior process.
 185      Targets use this to do what is necessary to get the state of the
 186      inferior such that it is possible to access memory.
 187
 188      This should generally only be called from client facing routines,
 189      such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
 190      insertion routine.
 191
 192      Like `read_memory' and `write_memory' below, returns 0 on success
 193      and errno on failure.  */
 194   virtual int prepare_to_access_memory ();
 195
 196   /* Undo the effects of prepare_to_access_memory.  */
 197   virtual void done_accessing_memory ();
 198
 199   /* Read memory from the inferior process.  This should generally be
 200      called through read_inferior_memory, which handles breakpoint shadowing.
 201
 202      Read LEN bytes at MEMADDR into a buffer at MYADDR.
 203
 204      Returns 0 on success and errno on failure.  */
 205   virtual int read_memory (CORE_ADDR memaddr, unsigned char *myaddr,
 206                            int len) = 0;
 207
 208   /* Write memory to the inferior process.  This should generally be
 209      called through target_write_memory, which handles breakpoint shadowing.
 210
 211      Write LEN bytes from the buffer at MYADDR to MEMADDR.
 212
 213      Returns 0 on success and errno on failure.  */
 214   virtual int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr,
 215                             int len) = 0;
 216
 217   /* Query GDB for the values of any symbols we're interested in.
 218      This function is called whenever we receive a "qSymbols::"
 219      query, which corresponds to every time more symbols (might)
 220      become available.  */
 221   virtual void look_up_symbols ();
 222
 223   /* Send an interrupt request to the inferior process,
 224      however is appropriate.  */
 225   virtual void request_interrupt () = 0;
 226
 227   /* Return true if the read_auxv target op is supported.  */
 228   virtual bool supports_read_auxv ();
 229
 230   /* Read auxiliary vector data from the inferior process.
 231
 232      Read LEN bytes at OFFSET into a buffer at MYADDR.  */
 233   virtual int read_auxv (CORE_ADDR offset, unsigned char *myaddr,
 234                          unsigned int len);
 235
 236   /* Returns true if GDB Z breakpoint type TYPE is supported, false
 237      otherwise.  The type is coded as follows:
 238        '0' - software-breakpoint
 239        '1' - hardware-breakpoint
 240        '2' - write watchpoint
 241        '3' - read watchpoint
 242        '4' - access watchpoint
 243   */
 244   virtual bool supports_z_point_type (char z_type);
 245
 246   /* Insert and remove a break or watchpoint.
 247      Returns 0 on success, -1 on failure and 1 on unsupported.  */
 248   virtual int insert_point (enum raw_bkpt_type type, CORE_ADDR addr,
 249                             int size, raw_breakpoint *bp);
 250
 251   virtual int remove_point (enum raw_bkpt_type type, CORE_ADDR addr,
 252                             int size, raw_breakpoint *bp);
 253
 254   /* Returns true if the target stopped because it executed a software
 255      breakpoint instruction, false otherwise.  */
 256   virtual bool stopped_by_sw_breakpoint ();
 257
 258   /* Returns true if the target knows whether a trap was caused by a
 259      SW breakpoint triggering.  */
 260   virtual bool supports_stopped_by_sw_breakpoint ();
 261
 262   /* Returns true if the target stopped for a hardware breakpoint.  */
 263   virtual bool stopped_by_hw_breakpoint ();
 264
 265   /* Returns true if the target knows whether a trap was caused by a
 266      HW breakpoint triggering.  */
 267   virtual bool supports_stopped_by_hw_breakpoint ();
 268
 269   /* Returns true if the target can do hardware single step.  */
 270   virtual bool supports_hardware_single_step ();
 271
 272   /* Returns true if target was stopped due to a watchpoint hit, false
 273      otherwise.  */
 274   virtual bool stopped_by_watchpoint ();
 275
 276   /* Returns the address associated with the watchpoint that hit, if any;
 277      returns 0 otherwise.  */
 278   virtual CORE_ADDR stopped_data_address ();
 279
 280   /* Return true if the read_offsets target op is supported.  */
 281   virtual bool supports_read_offsets ();
 282
 283   /* Reports the text, data offsets of the executable.  This is
 284      needed for uclinux where the executable is relocated during load
 285      time.  */
 286   virtual int read_offsets (CORE_ADDR *text, CORE_ADDR *data);
 287
 288   /* Return true if the get_tls_address target op is supported.  */
 289   virtual bool supports_get_tls_address ();
 290
 291   /* Fetch the address associated with a specific thread local storage
 292      area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
 293      Stores it in *ADDRESS and returns zero on success; otherwise returns
 294      an error code.  A return value of -1 means this system does not
 295      support the operation.  */
 296   virtual int get_tls_address (thread_info *thread, CORE_ADDR offset,
 297                                CORE_ADDR load_module, CORE_ADDR *address);
 298
 299   /* Fill BUF with an hostio error packet representing the last hostio
 300      error.  */
 301   virtual void hostio_last_error (char *buf);
 302
 303   /* Return true if the qxfer_osdata target op is supported.  */
 304   virtual bool supports_qxfer_osdata ();
 305
 306   /* Read/Write OS data using qXfer packets.  */
 307   virtual int qxfer_osdata (const char *annex, unsigned char *readbuf,
 308                             unsigned const char *writebuf,
 309                             CORE_ADDR offset, int len);
 310
 311   /* Return true if the qxfer_siginfo target op is supported.  */
 312   virtual bool supports_qxfer_siginfo ();
 313
 314   /* Read/Write extra signal info.  */
 315   virtual int qxfer_siginfo (const char *annex, unsigned char *readbuf,
 316                              unsigned const char *writebuf,
 317                              CORE_ADDR offset, int len);
 318
 319   /* Return true if non-stop mode is supported.  */
 320   virtual bool supports_non_stop ();
 321
 322   /* Enables async target events.  Returns the previous enable
 323      state.  */
 324   virtual bool async (bool enable);
 325
 326   /* Switch to non-stop (ENABLE == true) or all-stop (ENABLE == false)
 327      mode.  Return 0 on success, -1 otherwise.  */
 328   virtual int start_non_stop (bool enable);
 329
 330   /* Returns true if the target supports multi-process debugging.  */
 331   virtual bool supports_multi_process ();
 332
 333   /* Returns true if fork events are supported.  */
 334   virtual bool supports_fork_events ();
 335
 336   /* Returns true if vfork events are supported.  */
 337   virtual bool supports_vfork_events ();
 338
 339   /* Returns true if exec events are supported.  */
 340   virtual bool supports_exec_events ();
 341
 342   /* Allows target to re-initialize connection-specific settings.  */
 343   virtual void handle_new_gdb_connection ();
 344
 345   /* The target-specific routine to process monitor command.
 346      Returns 1 if handled, or 0 to perform default processing.  */
 347   virtual int handle_monitor_command (char *mon);
 348
 349   /* Returns the core given a thread, or -1 if not known.  */
 350   virtual int core_of_thread (ptid_t ptid);
 351
 352   /* Returns true if the read_loadmap target op is supported.  */
 353   virtual bool supports_read_loadmap ();
 354
 355   /* Read loadmaps.  Read LEN bytes at OFFSET into a buffer at MYADDR.  */
 356   virtual int read_loadmap (const char *annex, CORE_ADDR offset,
 357                             unsigned char *myaddr, unsigned int len);
 358
 359   /* Target specific qSupported support.  FEATURES is an array of
 360      features with COUNT elements.  */
 361   virtual void process_qsupported (char **features, int count);
 362
 363   /* Return true if the target supports tracepoints, false otherwise.  */
 364   virtual bool supports_tracepoints ();
 365
 366   /* Read PC from REGCACHE.  */
 367   virtual CORE_ADDR read_pc (regcache *regcache);
 368
 369   /* Write PC to REGCACHE.  */
 370   virtual void write_pc (regcache *regcache, CORE_ADDR pc);
 371
 372   /* Return true if the thread_stopped op is supported.  */
 373   virtual bool supports_thread_stopped ();
 374
 375   /* Return true if THREAD is known to be stopped now.  */
 376   virtual bool thread_stopped (thread_info *thread);
 377
 378   /* Return true if the get_tib_address op is supported.  */
 379   virtual bool supports_get_tib_address ();
 380
 381   /* Read Thread Information Block address.  */
 382   virtual int get_tib_address (ptid_t ptid, CORE_ADDR *address);
 383
 384   /* Pause all threads.  If FREEZE, arrange for any resume attempt to
 385      be ignored until an unpause_all call unfreezes threads again.
 386      There can be nested calls to pause_all, so a freeze counter
 387      should be maintained.  */
 388   virtual void pause_all (bool freeze);
 389
 390   /* Unpause all threads.  Threads that hadn't been resumed by the
 391      client should be left stopped.  Basically a pause/unpause call
 392      pair should not end up resuming threads that were stopped before
 393      the pause call.  */
 394   virtual void unpause_all (bool unfreeze);
 395
 396   /* Stabilize all threads.  That is, force them out of jump pads.  */
 397   virtual void stabilize_threads ();
 398
 399   /* Return true if the install_fast_tracepoint_jump_pad op is
 400      supported.  */
 401   virtual bool supports_fast_tracepoints ();
 402
 403   /* Install a fast tracepoint jump pad.  TPOINT is the address of the
 404      tracepoint internal object as used by the IPA agent.  TPADDR is
 405      the address of tracepoint.  COLLECTOR is address of the function
 406      the jump pad redirects to.  LOCKADDR is the address of the jump
 407      pad lock object.  ORIG_SIZE is the size in bytes of the
 408      instruction at TPADDR.  JUMP_ENTRY points to the address of the
 409      jump pad entry, and on return holds the address past the end of
 410      the created jump pad.  If a trampoline is created by the function,
 411      then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
 412      the trampoline, else they remain unchanged.  JJUMP_PAD_INSN is a
 413      buffer containing a copy of the instruction at TPADDR.
 414      ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that
 415      return the address range where the instruction at TPADDR was relocated
 416      to.  If an error occurs, the ERR may be used to pass on an error
 417      message.  */
 418   virtual int install_fast_tracepoint_jump_pad
 419     (CORE_ADDR tpoint, CORE_ADDR tpaddr, CORE_ADDR collector,
 420      CORE_ADDR lockaddr, ULONGEST orig_size, CORE_ADDR *jump_entry,
 421      CORE_ADDR *trampoline, ULONGEST *trampoline_size,
 422      unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size,
 423      CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end,
 424      char *err);
 425
 426   /* Return the minimum length of an instruction that can be safely
 427      overwritten for use as a fast tracepoint.  */
 428   virtual int get_min_fast_tracepoint_insn_len ();
 429
 430   /* Return the bytecode operations vector for the current inferior.
 431      Returns nullptr if bytecode compilation is not supported.  */
 432   virtual struct emit_ops *emit_ops ();
 433
 434   /* Returns true if the target supports disabling randomization.  */
 435   virtual bool supports_disable_randomization ();
 436
 437   /* Return true if the qxfer_libraries_svr4 op is supported.  */
 438   virtual bool supports_qxfer_libraries_svr4 ();
 439
 440   /* Read solib info on SVR4 platforms.  */
 441   virtual int qxfer_libraries_svr4 (const char *annex,
 442                                     unsigned char *readbuf,
 443                                     unsigned const char *writebuf,
 444                                     CORE_ADDR offset, int len);
 445
 446   /* Return true if target supports debugging agent.  */
 447   virtual bool supports_agent ();
 448
 449   /* Enable branch tracing for PTID based on CONF and allocate a branch trace
 450      target information struct for reading and for disabling branch trace.  */
 451   virtual btrace_target_info *enable_btrace (ptid_t ptid,
 452                                              const btrace_config *conf);
 453
 454   /* Disable branch tracing.
 455      Returns zero on success, non-zero otherwise.  */
 456   virtual int disable_btrace (btrace_target_info *tinfo);
 457
 458   /* Read branch trace data into buffer.
 459      Return 0 on success; print an error message into BUFFER and return -1,
 460      otherwise.  */
 461   virtual int read_btrace (btrace_target_info *tinfo, buffer *buf,
 462                            enum btrace_read_type type);
 463
 464   /* Read the branch trace configuration into BUFFER.
 465      Return 0 on success; print an error message into BUFFER and return -1
 466      otherwise.  */
 467   virtual int read_btrace_conf (const btrace_target_info *tinfo,
 468                                 buffer *buf);
 469
 470   /* Return true if target supports range stepping.  */
 471   virtual bool supports_range_stepping ();
 472
 473   /* Return true if the pid_to_exec_file op is supported.  */
 474   virtual bool supports_pid_to_exec_file ();
 475
 476   /* Return the full absolute name of the executable file that was
 477      run to create the process PID.  If the executable file cannot
 478      be determined, NULL is returned.  Otherwise, a pointer to a
 479      character string containing the pathname is returned.  This
 480      string should be copied into a buffer by the client if the string
 481      will not be immediately used, or if it must persist.  */
 482   virtual char *pid_to_exec_file (int pid);
 483
 484   /* Return true if any of the multifs ops is supported.  */
 485   virtual bool supports_multifs ();
 486
 487   /* Multiple-filesystem-aware open.  Like open(2), but operating in
 488      the filesystem as it appears to process PID.  Systems where all
 489      processes share a common filesystem should not override this.
 490      The default behavior is to use open(2).  */
 491   virtual int multifs_open (int pid, const char *filename,
 492                             int flags, mode_t mode);
 493
 494   /* Multiple-filesystem-aware unlink.  Like unlink(2), but operates
 495      in the filesystem as it appears to process PID.  Systems where
 496      all processes share a common filesystem should not override this.
 497      The default behavior is to use unlink(2).  */
 498   virtual int multifs_unlink (int pid, const char *filename);
 499
 500   /* Multiple-filesystem-aware readlink.  Like readlink(2), but
 501      operating in the filesystem as it appears to process PID.
 502      Systems where all processes share a common filesystem should
 503      not override this.  The default behavior is to use readlink(2).  */
 504   virtual ssize_t multifs_readlink (int pid, const char *filename,
 505                                     char *buf, size_t bufsiz);
 506 };
 507
 508 extern process_stratum_target *the_target;
 509
 510 void set_target_ops (process_stratum_target *);
 511
 512 #define target_create_inferior(program, program_args)   \
 513   the_target->pt->create_inferior (program, program_args)
 514
 515 #define target_post_create_inferior()                    \
 516   the_target->pt->post_create_inferior ()
 517
 518 #define myattach(pid) \
 519   the_target->pt->attach (pid)
 520
 521 int kill_inferior (process_info *proc);
 522
 523 #define target_supports_fork_events() \
 524   the_target->pt->supports_fork_events ()
 525
 526 #define target_supports_vfork_events() \
 527   the_target->pt->supports_vfork_events ()
 528
 529 #define target_supports_exec_events() \
 530   the_target->pt->supports_exec_events ()
 531
 532 #define target_handle_new_gdb_connection()               \
 533   the_target->pt->handle_new_gdb_connection ()
 534
 535 #define detach_inferior(proc) \
 536   the_target->pt->detach (proc)
 537
 538 #define mythread_alive(pid) \
 539   the_target->pt->thread_alive (pid)
 540
 541 #define fetch_inferior_registers(regcache, regno)       \
 542   the_target->pt->fetch_registers (regcache, regno)
 543
 544 #define store_inferior_registers(regcache, regno) \
 545   the_target->pt->store_registers (regcache, regno)
 546
 547 #define join_inferior(pid) \
 548   the_target->pt->join (pid)
 549
 550 #define target_supports_non_stop() \
 551   the_target->pt->supports_non_stop ()
 552
 553 #define target_async(enable) \
 554   the_target->pt->async (enable)
 555
 556 #define target_process_qsupported(features, count)      \
 557   the_target->pt->process_qsupported (features, count)
 558
 559 #define target_supports_catch_syscall()                 \
 560   (the_target->supports_catch_syscall ?                 \
 561    (*the_target->supports_catch_syscall) () : 0)
 562
 563 #define target_get_ipa_tdesc_idx()                      \
 564   (the_target->get_ipa_tdesc_idx                        \
 565    ? (*the_target->get_ipa_tdesc_idx) () : 0)
 566
 567 #define target_supports_tracepoints()                   \
 568   the_target->pt->supports_tracepoints ()
 569
 570 #define target_supports_fast_tracepoints()              \
 571   the_target->pt->supports_fast_tracepoints ()
 572
 573 #define target_get_min_fast_tracepoint_insn_len()       \
 574   the_target->pt->get_min_fast_tracepoint_insn_len ()
 575
 576 #define target_thread_stopped(thread) \
 577   the_target->pt->thread_stopped (thread)
 578
 579 #define target_pause_all(freeze)                \
 580   the_target->pt->pause_all (freeze)
 581
 582 #define target_unpause_all(unfreeze)            \
 583   the_target->pt->unpause_all (unfreeze)
 584
 585 #define target_stabilize_threads()              \
 586   the_target->pt->stabilize_threads ()
 587
 588 #define target_install_fast_tracepoint_jump_pad(tpoint, tpaddr,         \
 589                                                 collector, lockaddr,    \
 590                                                 orig_size,              \
 591                                                 jump_entry,             \
 592                                                 trampoline, trampoline_size, \
 593                                                 jjump_pad_insn,         \
 594                                                 jjump_pad_insn_size,    \
 595                                                 adjusted_insn_addr,     \
 596                                                 adjusted_insn_addr_end, \
 597                                                 err)                    \
 598   the_target->pt->install_fast_tracepoint_jump_pad (tpoint, tpaddr,     \
 599                                                     collector,lockaddr, \
 600                                                     orig_size, jump_entry, \
 601                                                     trampoline,         \
 602                                                     trampoline_size,    \
 603                                                     jjump_pad_insn,     \
 604                                                     jjump_pad_insn_size, \
 605                                                     adjusted_insn_addr, \
 606                                                     adjusted_insn_addr_end, \
 607                                                     err)
 608
 609 #define target_emit_ops() \
 610   the_target->pt->emit_ops ()
 611
 612 #define target_supports_disable_randomization() \
 613   the_target->pt->supports_disable_randomization ()
 614
 615 #define target_supports_agent() \
 616   the_target->pt->supports_agent ()
 617
 618 static inline struct btrace_target_info *
 619 target_enable_btrace (ptid_t ptid, const struct btrace_config *conf)
 620 {
 621   return the_target->pt->enable_btrace (ptid, conf);
 622 }
 623
 624 static inline int
 625 target_disable_btrace (struct btrace_target_info *tinfo)
 626 {
 627   return the_target->pt->disable_btrace (tinfo);
 628 }
 629
 630 static inline int
 631 target_read_btrace (struct btrace_target_info *tinfo,
 632                     struct buffer *buffer,
 633                     enum btrace_read_type type)
 634 {
 635   return the_target->pt->read_btrace (tinfo, buffer, type);
 636 }
 637
 638 static inline int
 639 target_read_btrace_conf (struct btrace_target_info *tinfo,
 640                          struct buffer *buffer)
 641 {
 642   return the_target->pt->read_btrace_conf (tinfo, buffer);
 643 }
 644
 645 #define target_supports_range_stepping() \
 646   the_target->pt->supports_range_stepping ()
 647
 648 #define target_supports_stopped_by_sw_breakpoint() \
 649   the_target->pt->supports_stopped_by_sw_breakpoint ()
 650
 651 #define target_stopped_by_sw_breakpoint() \
 652   the_target->pt->stopped_by_sw_breakpoint ()
 653
 654 #define target_supports_stopped_by_hw_breakpoint() \
 655   the_target->pt->supports_stopped_by_hw_breakpoint ()
 656
 657 #define target_supports_hardware_single_step() \
 658   the_target->pt->supports_hardware_single_step ()
 659
 660 #define target_stopped_by_hw_breakpoint() \
 661   the_target->pt->stopped_by_hw_breakpoint ()
 662
 663 #define target_breakpoint_kind_from_pc(pcptr) \
 664   (the_target->breakpoint_kind_from_pc \
 665    ? (*the_target->breakpoint_kind_from_pc) (pcptr) \
 666    : default_breakpoint_kind_from_pc (pcptr))
 667
 668 #define target_breakpoint_kind_from_current_state(pcptr) \
 669   (the_target->breakpoint_kind_from_current_state \
 670    ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
 671    : target_breakpoint_kind_from_pc (pcptr))
 672
 673 #define target_supports_software_single_step() \
 674   (the_target->supports_software_single_step ? \
 675    (*the_target->supports_software_single_step) () : 0)
 676
 677 ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options,
 678                int connected_wait);
 679
 680 /* Prepare to read or write memory from the inferior process.  See the
 681    corresponding process_stratum_target methods for more details.  */
 682
 683 int prepare_to_access_memory (void);
 684 void done_accessing_memory (void);
 685
 686 #define target_core_of_thread(ptid)             \
 687   the_target->pt->core_of_thread (ptid)
 688
 689 #define target_thread_name(ptid)                                \
 690   (the_target->thread_name ? (*the_target->thread_name) (ptid)  \
 691    : NULL)
 692
 693 #define target_thread_handle(ptid, handle, handle_len) \
 694    (the_target->thread_handle ? (*the_target->thread_handle) \
 695                                   (ptid, handle, handle_len) \
 696    : false)
 697
 698 int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len);
 699
 700 int set_desired_thread ();
 701
 702 const char *target_pid_to_str (ptid_t);
 703
 704 int default_breakpoint_kind_from_pc (CORE_ADDR *pcptr);
 705
 706 #endif /* GDBSERVER_TARGET_H */